chrono-node
Version:
A natural language date parser in Javascript
67 lines • 3.48 kB
JavaScript
import * as dates from "../../utils/dates.js";
import { implySimilarDate } from "../../utils/dates.js";
import { addDuration } from "../../calculation/duration.js";
export default class ForwardDateRefiner {
refine(context, results) {
if (!context.option.forwardDate) {
return results;
}
results.forEach((result) => {
let refDate = context.reference.getDateWithAdjustedTimezone();
if (result.start.isOnlyTime() && context.reference.instant > result.start.date()) {
const refDate = context.reference.getDateWithAdjustedTimezone();
const refFollowingDay = new Date(refDate);
refFollowingDay.setDate(refFollowingDay.getDate() + 1);
dates.implySimilarDate(result.start, refFollowingDay);
context.debug(() => {
console.log(`${this.constructor.name} adjusted ${result} time from the ref date (${refDate}) to the following day (${refFollowingDay})`);
});
if (result.end && result.end.isOnlyTime()) {
dates.implySimilarDate(result.end, refFollowingDay);
if (result.start.date() > result.end.date()) {
refFollowingDay.setDate(refFollowingDay.getDate() + 1);
dates.implySimilarDate(result.end, refFollowingDay);
}
}
}
if (result.start.isOnlyWeekdayComponent() && refDate > result.start.date()) {
let daysToAdd = result.start.get("weekday") - refDate.getDay();
if (daysToAdd <= 0) {
daysToAdd += 7;
}
refDate = addDuration(refDate, { day: daysToAdd });
implySimilarDate(result.start, refDate);
context.debug(() => {
console.log(`${this.constructor.name} adjusted ${result} weekday (${result.start})`);
});
if (result.end && result.end.isOnlyWeekdayComponent()) {
let daysToAdd = result.end.get("weekday") - refDate.getDay();
if (daysToAdd <= 0) {
daysToAdd += 7;
}
refDate = addDuration(refDate, { day: daysToAdd });
implySimilarDate(result.end, refDate);
context.debug(() => {
console.log(`${this.constructor.name} adjusted ${result} weekday (${result.end})`);
});
}
}
if (result.start.isDateWithUnknownYear() && refDate > result.start.date()) {
for (let i = 0; i < 3 && refDate > result.start.date(); i++) {
result.start.imply("year", result.start.get("year") + 1);
context.debug(() => {
console.log(`${this.constructor.name} adjusted ${result} year (${result.start})`);
});
if (result.end && !result.end.isCertain("year")) {
result.end.imply("year", result.end.get("year") + 1);
context.debug(() => {
console.log(`${this.constructor.name} adjusted ${result} month (${result.start})`);
});
}
}
}
});
return results;
}
}
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